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POWhy do some characters lose when I use str_shuffle() in PHP?
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2013-09-10T12:35:38.337
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2013-09-10T12:54:55.617
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This is the code in lib.php: <pre><code><?php class table { function __construct($string, $time) { $out = '<table cellpadding="5">'; $out .= $this->getRow('th', 'Nom., Shuffled String, Lenght'); for ($x = 1; $x <= $time; $x++) { $shuffledStr = str_shuffle($string); //Maybe this causes the problem $shuffledStr_len = strlen($shuffledStr); $out .= $this->getRow('td', $x . ', ' . $shuffledStr . ', ' . $shuffledStr_len); } $out .= '</table>'; echo $out; } public function getRow($tagName, $contents_list) { //Variables: $out = ''; $contents_array = explode(', ', $contents_list); $contents_number = count($contents_array); $start_tag = '<' . $tagName . '>'; $end_tag = '</' . $tagName . '>'; // Build $out .= '<tr>'; for ($i = 0; $i < $contents_number; $i++) { $out .= $start_tag . $contents_array[$i] . $end_tag; } $out .= '</tr>'; return $out; } } ?> </code></pre> And here is index.php: <pre><code> <?php require_once 'lib.php'; $string = ''; //My string $shuffleTimes = 100; $table = new table($string, $shuffleTimes); ?> </code></pre> This program gets the a string and the number that you wanna shuffle, then create a table and returns the number, shuffled string and the length of the shuffle string in each row. If I set the variable <code>$string</code> to 'Stack Overflow' for instance it'll work correctly (It shuffles this word 100 times randomly, returns all lengths 14 and the length of the ALL shuffled strings are really 14.) But... If I add some special character to the variable <code>$string</code> (for example <code>Stack Overflow+_)(*&^%$#{}[]<>@!~./=-</code>) it won't work correctly. That means it returns the lengths 37 But they doesn't have 37 characters!(For example it printed <code>nothing</code> and printed it's lenght <code>38</code>. I think it's a bit strange. :( Why is that?! Which character causes that and how to fix it?
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<php><string><special-characters><shuffle>
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Why do some characters lose when I use str_shuffle() in PHP?
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